Senior Security Engineer

IonQ, Inc is the world’s leading quantum platform and merchant supplier, delivering integrated quantum solutions across various domains. The company is seeking a Senior Security Engineer to expand its security engineering capabilities, focusing on designing resilient systems and strengthening security posture in commercial, federal, and regulated environments.

Responsibilities:

• Deploy, configure, and maintain platforms including Splunk and Microsoft Sentinel
• Administer CrowdStrike Falcon EDR across enterprise endpoints, ensuring sensor coverage and policy enforcement
• Manage CrowdStrike DLP policies and Exposure Management to prioritize vulnerability posture and prevent data exfiltration
• Operate CrowdStrike modules and build Falcon Fusion SOAR playbooks to automate triage and remediation
• Conduct regular vulnerability testing and risk assessments to identify potential security threats and weaknesses in the organization’s infrastructure
• Deploy and administer Network Intrusion Detection (NID) system as a network security monitoring platform
• Configure and secure cloud environments such as Azure Government or AWS GovCloud in alignment with required baselines
• Develop and maintain documentation for security tool configurations and architecture
• Participate in Continuous Monitoring (ConMon) activities and ensure accurate, timely evidence submission
• Design and implement security tooling and controls in a cloud environment to protect the organization’s data and systems across mobile devices, workstations, servers and SaaS technologies

Requirements:

• 3–5+ years of experience in security engineering, cloud security, or infrastructure/network security
• Experienced in writing automation scripts in Python, Powershell, or Bash
• Working knowledge of protocols such as DNS, HTTPS/S, TLS, and LDAP
• Familiarity with federal frameworks such as FedRAMP, NIST 800‑171, and CMMC Levels 1 & 2
• Experience configuring and securing AWS GovCloud, Azure Government, or similar regulated cloud platforms
• Understanding of the MITRE ATT&CK Framework and its application to threat hunting
• Experience working with vulnerability management programs in compliance-driven environments
• Clear and concise technical writing skills, with the ability to produce documentation suitable for audits and assessments
• Experience supporting, maintaining, or engineering for a FedRAMP-authorized system
• Experience working with incident response
• Background in generating SSPs, POA&Ms, ConMon evidence, or system architecture documentation
• Automation experience related to compliance workflows, evidence gathering, or configuration drift detection
• Certifications such as Security+, CySA+, CASP+, CCSP, CISSP, or related
• Secret Clearance or above